Prepare the Cookie Dough:

1. Cream the Butter and Sugars: In a large mixing bowl, beat together the butter, granulated sugar, and brown sugar until the mixture is light and fluffy.

2. Add the Eggs and Vanilla: Beat in the eggs one at a time, then add the vanilla extract and continue mixing until well combined.

3. Combine the Dry Ingredients: In a separate bowl, whisk together the flour, baking powder, and salt. Gradually mix the dry ingredients into the wet ingredients until just combined.

4. Add the Chocolate and Nuts: Stir in the chocolate chips and pecans (if using).

2. Prepare the Caramel Layer:

1. Melt the Caramel: In a saucepan, melt the caramel squares and heavy cream over low heat, stirring constantly until smooth.

2. Optional Sweetener: Stir in honey or maple syrup to enhance the sweetness of the caramel. If you want a thicker caramel, whisk in the cornstarch.

3. Assemble the Bars:

1. Spread the Dough: Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper. Spread half of the cookie dough evenly in the bottom of the prepared pan.

2. Bake the Base: Bake the dough for 10-12 minutes, or until it is lightly golden but not fully cooked through.

3. Add the Caramel Layer: Remove the pan from the oven and pour the melted caramel over the partially baked dough, spreading it out evenly.

4. Top with the Remaining Dough: Spoon the remaining cookie dough over the caramel layer. It doesn’t need to be perfectly smooth—just drop spoonfuls over the caramel and spread gently.

5. Bake Again: Return the pan to the oven and bake for another 15-20 minutes, or until the top is golden brown and a toothpick inserted comes out clean.

4. Cool and Serve:

1. Cool the Bars: Allow the bars to cool completely in the pan before cutting into squares.

2. Serve and Enjoy: For extra decadence, serve warm with a scoop of vanilla ice cream or drizzle with extra caramel sauce. Garnish with a sprinkle of sesame seeds or chopped nuts if desired.